<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
<form action="login" method="post">
    <label for="username">Username:</label>
    <input type="text" name="username" id="username" required>
    <br>
    <label for="password">Password:</label>
    <input type="password" name="password" id="password" required>
    <br>
    <label for="captcha">Captcha:</label>
    <input type="text" name="captcha" id="captcha" required>
    <img src="yzm" alt="Captcha Image" />
    <br>
    <input type="submit" value="Login">
</form>

</body>
</html>